I’ve used this head before, specifically on my holiday-themed Mari Lwyd creation. When I made that figure, someone pointed out to me that it looked like a Wendigo, which got the idea of making one of those monsters into my head!
You can read this character's story on my Instagram page.
I repainted the head (which is from an old DC Skallox figure) and add some horns from a Mythic Legions Xylona. I also repainted all the bones from the Skeleton Soldier base figure and swapped out the normal feet for some hooves. His loin and shoulder fur are from the LOTR line, completing this monster’s look.